After more than a decade, the parents of "baby killer" Keli Lane are speaking to the media.

It has been more than a decade since Keli Lane first hit headlines in 2005, accused of killing her two-day-old daughter Tegan nine years previously.

A former Australian water polo player from Sydney’s affluent northern suburbs, 21-year-old Lane hid her pregnancy from her family and friends, choosing to give birth in secret in Auburn Hospital in 1996.

Two days later she attended a wedding with her then-partner rugby league player Duncan Gillies, there was no sign of the child.

Keli Lane . Image: ABC

Throughout her trial, which resulted in an 18 year jail sentence in 2010 for murder, Lane’s parents supported her in silent solidarity, refusing to speak to the media.

It has been five years since Lane Robert and Sandra Lane are still standing by their daughter, but have chosen to speak exclusively to the Australian Women’s Weekly and will appear in a 60 Minutes special on Sunday night.

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“As far as Sandra and I are concerned, we won’t believe that Tegan is dead until there is a body,” her father told the AWW.

“And to date, there has neither been a body produced nor any credible motive. This has been a harrowing experience for our entire family from start to finish.”

Lane maintains that she gave Tegan to the baby’s biological father, a man she had a brief affair with whose name she can’t recall and who was never found by police.

Investigators did, however, uncover that Tegan was one of three children carried in secret by Lane over a four year period.

The first and third were given up for adoption.

“As a mother, it’s not an easy thing to see your daughter in prison going through something like this. But she is my child and I love her, and I will stand by her no matter what,” Lane’s mother said, adding that she still visits her daughter weekly and backs her “100 per cent”.

Lane’s parents on 60 minutes. Image: 60 Minutes

Lane has lodged two unsuccessful legal appeals against her sentence, one of which went to the high court.

Despite this, her case has recently been taken on by a group of lawyers and academics, known as The Bridge of Hope Innocence Initiative, operating out of Melbourne’s RMIT University.

The group argue that while Lane undoubtedly lied to police and under oath, without a body nor credible motive there is no grounds for a conviction.

“This is something we have been living with for 13 years,” Lane’s father said.

“We still live every day under the enormous pressure that this case has brought to bear. And we don’t say that to seek sympathy — it’s just a statement of fact. It’s a daily reality in our lives. Our daughter is in prison for a crime we don’t believe she committed. It’s a heavy burden to carry.”